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2 years ago

Notebooks cost $1.20 each. This weekend they will be on sale for $0.80. What percentage is the sale?

Mathematics

2 answers:

Hitman42 [59]2 years ago

7 0

33% should be your answer

nexus9112 [7]2 years ago

6 0

33% off you are paying 66%

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Answer:

(x-7)(x+5)

Step-by-step explanation:

-7 and 5 add up to 2 and multiply to -35

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Step-by-step explanation:

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8x-5y=21 simultaneous linear equation 2x+9y=-5

olya-2409 [2.1K]

Answer:

$x=2$ and $y=-1$

Step-by-step explanation:

If two equations are given, we can solve one of the equation in terms of single variable and put it in the other equation which will further give the value of x and y.

For the given equations:

$8x-5y=21$ Equation:1

$2x+9y=-5$ Equation:2

Solving equation multiply equation 2 with 4 on both the sides

$8x+36y=-20$ Equation 3

Subtracting Equation:3 from Equation:1

$8x-5y-(8x+36y)=21-(-20)\\8x-5y-8x-36y=21+20\\-41y=41\\y=-1$

Putting value of 'y' in Equation:2 which will give the value of x

$2x+9y=-5\\2x+9(-1)=-5\\2x-9=-5\\2x=4\\x=2$

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2 years ago

Helppppp plz asap..............

bekas [8.4K]

Answer:

I'm pretty sure the answer is 48 feet.

Step-by-step explanation:

It can't be any of the negative answers since the question didn't start with a negative number, and it can't be 14 feet since he started with 15 feet, so it has to be 48 feet.

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2 years ago